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- Wiegand, Ernest Herman, 1886 26
- Bogart, Ralph, 1908 25
- Hartman, Henry, 1889 25
- Schuster, C. E. (Carl Ephraim), 1889 25
- Mote, Don C. (Don Carlos), 1887 24
- Robinson, R. H. (Reginald Heber), 1886 24
- University Of Idaho. Extension24
- Lewis, C. I. (Claude Isaac), 1880 192423
- Wilster, G. H. (Gustav Hans), 189323
- Oregon Agricultural College. Extension Division22
- Oregon State University. Malheur Experiment Station21
- Price, F. E. (Frederick Earl), 1898 21
- Jones, I. R. (Idwal Ralph), 1898 20
- Kuhlman, G. W. (Gustav Wesley), 1894 20
- Oregon State University. Engineering Experiment Station20
- Bennion, N. L. (Noel Lindsay), 1903 19
- Huber, M. G.19
- Hyslop, G. R. (George Robert), 1884 19
- Institute For Natural Resources19